Child&#39;s safety seat



FIG. 1 is a front perspective view of a child's safety seat showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right elevational view;

FIG. 4 is a rear elevational view; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a child's safety seat, as shown and described. 